"The two lenses may look the same, but they have very different functions. One shoots in RGB to produce a color image, while the other takes care of the monochrome images. The monochrome lens brings out the detail, and engage more light than the RGB lens when in low-light condition, which takes care of the colors. The Dual camera 2.0 technology in Cool Dual actually enhanced the overall clarity of the image by 20%, help reduce image noise by 8% and improved brightness by 20%. “With these, we believe the real dual 13MP cameras brings us smart framing and the 6P lens gives customers the best quality of pictures”, said Jeff Liu, Coolpad Group CEO."
"...enhanced the overall clarity of the image by 20%, help reduce image noise by 8% and improved brightness by 20% ..."
ReplyDeleteAren't there figures too minor to actually speak about, especially regarding the effort that a DUAL Camera setup would require.
Merely increasing f-stop brightness from f2 to f1.7 itself would make for 50% brighter images.
I am guessing image noise would reduce as a consequence regardless.
Clarity of the image may be be sligtlg improved by a change in optics, and arguably a LOT more by better processing.
There's also the manufacturing and computational costs of aligning the two cameras.
ReplyDeleteI'm not sure what metric "clarity" is. MTF50? LP/PH? Is "brightness" in SNR10?
Reducing noise by 8% seems awfully low for the effort of adding a second camera with a large-aperture lens.